Delphia



TATES ATEN'I tries,

WILLIAM F. G. M. MOOARTY, OF PHILADELPHIA, PA., ASSIGNOR TO AD'OLPH OHL,JAMES MOO. OREIGHTON, AND BERNARD O. LAUIH, ALL OF PHILA- DELPHIA, PA.,AND JANE LOGAN,

OF HAGERSTOWN, MD.

SPECIFICATION forming part of Letters Patent No. 330,142, dated November10, 18815.

Application filed June 5, 1885. Serial No. 167,779.

To aZZ whom it may concern.- U Be it known that I, W. F. O. M. MOCARTY,a citizen of the United States, and a resident of Philadelphia,Pennsylvania, have invented certain Improvements in Processes ofManufacturing Gas, of which the following is a specification.

My present invention consists of an improvement in the process ofutilizing natural gas for the production of an illuminating-gas of highcandle-power, for which I have obtained Letters Patent of the UnitedStates, June 30, 1885, N 0. 321,125.

In carrying out my process I may make use of 1 any convenientconstruction of retorts; but I prefer to employ a furnace similar tothat illustrated and described in aforesaid patent, with a slightmodification, as illustrated in the accompanying drawings, in whichFigure 1 is a vertical section of the furnace, and Fig. 2 is a sectionalplan on the line 1 2, Fig. 1.

A is the body of the furnace, having at the bottom a fire-place, a, andat the upper end 2 an outlet, a, for the escape of the products ofcombustion. Across the body of the furnace I build retorts D D D, therebeing three rows in the present instance with three retorts in each row.The retorts of each row are con- 0 nected with each other alternately atopposite ends by necks d, while the last retort of the first row, D, isconnected through a pipe, 2, with the first retort of the second row, D.The last retort of the second row, D, is connected 5 through a tube, 3,with the first retort of the third row, D and the last retort of thisthird row has an outlet-pipe, N, provided with a valve or cook, n. Thefirst retort of the first row has an inlet at 1, leading from aheatingcoil, E, which passes down through the furnace between theretorts. At the point where it enters the furnace at the upper end ithas two inlets or supply-pipes, e 6, one for the introduction of steamand the other for the natu- 5 ral gas to be treated. The pipe N from theupper retorts passes down outside the furnace and opens into a chamber,M, immediately over the fire. From this chamber leads thesuperheating-coil S, passing up through the furnace Within the outercoil, and having its (No model.)

outlet at 4. Into the chamber M opens a second pipe, G, which also maybe provided with a valve for the regulated introduction of oil in liquidform.

I place in each of the retorts iron or similar deoxidizing material in afinely-divided state, and I introduce into the coil E steam and naturalgas, which, in passing through the coil are subjected to great heat, sothat on coming into contact with the iron or similar material in theretorts the hydrogen will be freed to combine with the gas through thetaking upof the oxygen by the metal. To carburet the gas thus formed, Iinject into the chamber M small quantities of hydrocarbon in the form ofoil 6 in a finely-divided condition, where it meets and unites with thegas from the retorts.

The oil used may be of any character found convenient, from the lighterto the heavier oils of the series. I prefer, however, to use benzine inthe proportion of about one gallon to the thousand feet of gas.

The oil introduced into the chamber becomes thoroughly vaporized by theexcessive heat in the presence of the natural gas and 7 5 hydrogen, andis thoroughly mixed therewith, just sufficient hydrocarbon beingintroduced in the form of oil to produce a perfect distillation withoutleaving or forming condensible products.

The gas in passing up through the superheater S becomes thoroughlyfixed, resulting in the production of an illuminating-gas of abouttwenty-candle power.

I am aware that it has heretofore been pro- 8 5 posed to produceilluminating-gas by subjecting air or gas, decomposed steam, and liquidhydrocarbon to heat in a mixing-chamber; but in my invention the naturalgas is first subjected to excessive heat in the presence of 0 hydrogen,and the liquid hydrocarbon is introduced in a finely-divided statesubsequently.

Iclaim as my invention 1. The process herein described of utilizing thenatural gas of the earth for the produc- 5 tion of illuminating-gas,said process consisting in subjecting the said gas to excessive heat inthe presence of free hydrogen, and subsequently introducing a liquidhydrocarbon in a finely-divided condition.

2. The process herein described of utilizing In testimony whereof I havesigned my name the natural gas of the earth for the production to thisspecification in the presence of two sub- 10 of an illuminating-gas,said process consisting scribing witnesses. in first subjectin the gasto excessive heat in 7 5 the presence of s%eam; second, freeing the hy-MOGARTY dreg'en under excessive heat to combine with Witnesses: the gas,and subsequently introducing liquid J. J. MOOQRMIOK, hydrocarbon in afine1y-divided state. J. V MoOoRMIoK.

